US6948774B2 - Armrest - Google Patents

Armrest Download PDF

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Publication number
US6948774B2
US6948774B2 US10/644,810 US64481003A US6948774B2 US 6948774 B2 US6948774 B2 US 6948774B2 US 64481003 A US64481003 A US 64481003A US 6948774 B2 US6948774 B2 US 6948774B2
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US
United States
Prior art keywords
guide
arm support
armrest
rotary
axis
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
US10/644,810
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English (en)
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US20040066080A1 (en
Inventor
Klaus Maier
Michael Klaesener
Thomas Stenzel
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sedus Stoll AG
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Sedus Stoll AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sedus Stoll AG filed Critical Sedus Stoll AG
Assigned to SEDUS STOLL AG reassignment SEDUS STOLL AG ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: KLAESENER, MICHAEL, MAIER, KLAUS, STENZEL, THOMAS
Publication of US20040066080A1 publication Critical patent/US20040066080A1/en
Application granted granted Critical
Publication of US6948774B2 publication Critical patent/US6948774B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C1/00—Chairs adapted for special purposes
    • A47C1/02—Reclining or easy chairs
    • A47C1/022—Reclining or easy chairs having independently-adjustable supporting parts
    • A47C1/03—Reclining or easy chairs having independently-adjustable supporting parts the parts being arm-rests

Definitions

  • the invention relates to the field of seating furniture, in particular to a three-dimensionally adjustable armrest for an office chair.
  • EP 0 809 957 A3 discloses a chair in the case of which the arm support can be adjusted three-dimensionally, that is to say in respect of height, in a horizontal plane and in respect of rotation.
  • the arm support here is fastened on an attachment plate, fitted at the top end of the carrier, and can be rotated about a pin and displaced longitudinally via a sliding body.
  • the axis of rotation of the arm support is located centrally in the arm support and eccentrically in relation to the centre axis of the carrier.
  • U.S. Pat. No. 6,076,891 discloses the armrest of a chair in the case of which the arm support is mounted in a pivotable manner on a horizontal arm which, for its part, is mounted in a pivotable manner on a vertical, height-adjustable carrier.
  • this design provides considerable scope for movement for the arm support in a horizontal plane, it is of complex design, is not very stable and also is not aesthetically acceptable to the user.
  • U.S. Pat. No. 5,752,683 discloses an armrest which specifically avoids the occurrence of carpal tunnel syndrome in individuals who spend long periods of time working with equipment such as typewriters, personal computers and the like.
  • a longitudinally extending, high-outlay arm support which can be displaced over a considerable distance in the forward and rearward directions and, at the front, has a special, swing-up supporting means for the ball of the thumb, and which is mounted in a pivotable manner on the vertical carrier.
  • the known armrest is of extremely complex design and is not suitable for mass production.
  • U.S. Pat. No. 6,076,892 discloses an armrest which provides for a large number of movement possibilities for the arm support: heightwise, forwards and rearwards, laterally and in rotation. This known armrest also involves extremely high outlay and is far too expensive for mass production.
  • an armrest which, while being as adaptable as possible to the user's requirements, is nevertheless straightforward to produce and install and is thus suitable for use in reasonably priced mass-produced furniture.
  • the clear distance between the arm supports it should be possible for the clear distance between the arm supports to be easily varied, because the clear distance between the arm supports of an office chair is a critical, and in some cases country-specific, magnitude.
  • the maximum clear distance is 460-510 mm, while, in the Netherlands, the clear distance should be a minimum of 390-510 mm.
  • the object of the invention is thus to develop an armrest which makes it possible for the clear distance between the two arm supports to be adjusted in a straightforward manner without particular production or installation outlay being necessary for this purpose.
  • the invention is based on the idea of providing the arm support with a guide which slides on guide noses—blocks—which are fastened on a rotary part mounted in a rotatable manner on the backrest carrier, and in the process of arranging the guide eccentrically in relation to the point of rotation of the rotary part.
  • This allows for a combination of a longitudinal movement and rotary movement of the arm support, in the case of which, on account of the eccentricity of the rotation, it is possible to set a variety of clear distances between the two arm supports.
  • FIG. 1 shows an armrest according to the invention in an exploded illustration
  • FIG. 2 shows a plan view of the guide housing
  • FIG. 3 shows a plan view of an armrest according to the invention with an illustration of the various movement possibilities for the arm support.
  • FIG. 1 illustrates a carrier 1 on which a sleeve 2 is arranged for sliding action.
  • the carrier 1 is connected to a seat flange 3 , which is fastened on the chair (not shown).
  • the seat flange 3 has two slots and can be displaced transversely to the seat direction.
  • the seat direction here is the direction from the backrest to the front edge of the chair.
  • the height of the armrest can be adjusted by means of the sleeve 2 sliding on the carrier 1 .
  • the rotary bearing 5 is provided at the top end of the sleeve 2 .
  • the rotary part 4 is mounted in a rotatable manner in said bearing 5 .
  • the rotary part 4 has the guide noses 6 , which are connected integrally to the rotary part 4 .
  • the rotary part 4 is screwed in the rotary bearing 5 by the central screw 16 .
  • Elastic latching protrusions 15 are accommodated in recesses of the rotary part 4 and correspond with notches on the inner circumference of the rotary bearing 5 . In the installed state, the rotary part 4 is thus fixed in position, during rotation, wherever the latching protrusions 15 end up in a notch.
  • the guide noses 6 engage from beneath in the two guides 7 in the guide housing 12 .
  • a retaining plate 8 is provided on the other side of the guides 7 . This retaining plate is fastened on the guide noses 6 by means of the retaining screws 9 .
  • the housing screws 13 are used to fasten the guide housing 12 on the carrying panel 10 , which bears the foamed-on pads 11 .
  • the underside of the guide housing 12 slides between the two guide noses 6 on the surface of the rotary part 4 .
  • the arm support is displaced in the longitudinal or seat direction.
  • the horizontal latching protrusions 14 are provided in a rotary part 4 , and notches are provided on the underside of the guide housing 12 . Fixed latching positions are thus produced whenever the expansible latching protrusions 14 end up in a notch on the underside of the guide housing 12 .
  • the details of the guide housing 12 are illustrated again more specifically in FIG. 2 .
  • the two eccentrically located guides 7 in particular can better be seen. It is also possible to see the bores 18 , through which the housing screws 13 are screwed into the carrying panel 10 .
  • the rotary bodies and crosspieces (not designated) form a skeleton for stabilizing the guide housing 12 .
  • This comprises a plastic injection moulding, preferably made of PA/polyamide.
  • FIG. 3 shows the pad 11 from above in various positions.
  • the axis of rotation 17 that is the centre axis of the rotary part 4 , is located eccentrically in relation to the axis of symmetry of the pad 11 which runs in the seat direction.
  • the pad 11 can be displaced longitudinally in direction B. This movement is made possible by the sliding movement in the guides 7 . It may also be rotated, however, about the axis 17 in accordance with the double arrow A. This rotation is made possible by the rotary part 4 . Finally, however, it is also possible for the carrier 1 to be moved in direction C by means of the seat flange 3 .
  • the result is not just a large number of adjustments for the arm support with the pad 11 ; the eccentricity of the guides 7 also makes possible a large number of clear distances between the two arm supports of a chair.
  • the armrest according to the invention preferably consists of the following material:
  • the carrier 1 and seat flange 3 consist of injection-moulded plastic
  • the sleeve 2 , rotary part 4 and housing 12 consist of injection-moulded plastic, preferably PA
  • the retaining plate 8 is a punched part made of sheet metal
  • the carrying panel 10 with pad 11 is PA with a PUR covering.
  • the latching protrusions 14 and 15 consist of steel with resilient elements made of PUR.

Landscapes

  • Health & Medical Sciences (AREA)
  • Dentistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Special Chairs (AREA)
  • Seats For Vehicles (AREA)
  • Steps, Ramps, And Handrails (AREA)
  • Liquid Crystal (AREA)
  • Passenger Equipment (AREA)
  • Chair Legs, Seat Parts, And Backrests (AREA)
US10/644,810 2002-10-04 2003-08-21 Armrest Expired - Fee Related US6948774B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP02022433.3 2002-10-04
EP02022433A EP1405582B1 (de) 2002-10-04 2002-10-04 Armlehne

Publications (2)

Publication Number Publication Date
US20040066080A1 US20040066080A1 (en) 2004-04-08
US6948774B2 true US6948774B2 (en) 2005-09-27

Family

ID=31985061

Family Applications (1)

Application Number Title Priority Date Filing Date
US10/644,810 Expired - Fee Related US6948774B2 (en) 2002-10-04 2003-08-21 Armrest

Country Status (9)

Country Link
US (1) US6948774B2 (xx)
EP (1) EP1405582B1 (xx)
CN (2) CN100435694C (xx)
AT (1) ATE313986T1 (xx)
CA (1) CA2440490A1 (xx)
DE (1) DE50205453D1 (xx)
ES (1) ES2252372T3 (xx)
HK (1) HK1064267A1 (xx)
MX (1) MXPA03009017A (xx)

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060226691A1 (en) * 2005-04-08 2006-10-12 Steelcase Development Corporation Armrest with height adjustment mechanism
US20070164594A1 (en) * 2004-10-26 2007-07-19 Ching-Chung Yang Multi-functional armrest assembly
US7452032B1 (en) 2005-09-27 2008-11-18 Earthlite Massage Tables, Inc. Armrest assembly for a resting device
US20090189428A1 (en) * 2005-03-01 2009-07-30 Haworth, Inc. Arm assembly for a chair
US8235468B2 (en) 2005-03-01 2012-08-07 Haworth, Inc. Arm assembly for a chair
US20140159444A1 (en) * 2012-12-12 2014-06-12 Airbus Operations (Sas) Seating device comprising a forward-foldable backrest
US20140354026A1 (en) * 2012-02-01 2014-12-04 Imarc S.P.A. Armrest, in particular for office chairs
US9044098B2 (en) 2012-11-16 2015-06-02 Holland Plastics Corporation Adjustable armrest assembly
US9113711B2 (en) 2011-01-10 2015-08-25 Bock 1 Gmbh & Co. Kg Armrest, in particular for an office chair
US9320360B2 (en) 2012-12-14 2016-04-26 Holland Plastics Corporation Armrest assembly
US20180325261A1 (en) * 2017-05-15 2018-11-15 Bock 1 Gmbh & Co. Kg Armrest, in particular for an office chair
USD888479S1 (en) * 2018-06-04 2020-06-30 Steelcase Inc. Chair arm
US11266247B2 (en) * 2020-02-24 2022-03-08 Atec International Team Co., Ltd. Easily assembled chair armrest
US20220080602A1 (en) * 2020-09-11 2022-03-17 Verb Surgical Inc. Linear lock and adjustable arm support system
US11324326B2 (en) * 2020-03-03 2022-05-10 Yi-Ru Chen Multi-directional adjustable armrest pad and chair armrest device with armrest pad
US11369204B2 (en) 2020-01-21 2022-06-28 Bock 1 Gmbh & Co. Kg Armrest, in particular for an office chair
US20220322834A1 (en) * 2021-03-30 2022-10-13 Atec International Team Co., Ltd. Chair armrest

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE50205453D1 (de) * 2002-10-04 2006-02-02 Stoll Sedus Ag Armlehne
US6908158B2 (en) * 2003-01-02 2005-06-21 Haworth, Inc. Lateral motion chair arm mechanism for chair arm
DE102005017142A1 (de) * 2005-04-13 2006-10-19 Bock 1 Gmbh & Co. Kg Armlehne, insbesondere für einen Bürostuhl
US7527335B2 (en) * 2006-02-27 2009-05-05 Steelcase Inc. Seating unit with adjustable components
US7582987B2 (en) * 2007-02-27 2009-09-01 Kinpo Electronics, Inc. Double power sources switching circuit
DE102007060328A1 (de) 2007-12-12 2009-06-18 Sedus Stoll Ag Höhenverstellbare Armlehne
DE102007060327B4 (de) 2007-12-12 2012-04-12 Sedus Stoll Ag Horizontal verstellbare Armlehne und Stuhl mit einer solchen Armlehne
PL398195A1 (pl) * 2012-02-21 2013-09-02 Andrzej Kieryllo Krzeslo dwufunkcyjne z podzielnym siedziskiem
ES2440065B1 (es) * 2012-04-27 2015-03-10 Illinois Tool Works Dispositivo de fijación rápida en paneles
WO2014047255A2 (en) * 2012-09-20 2014-03-27 Steelcase Inc. Chair arm assembly
DE102020103680A1 (de) * 2020-02-12 2021-08-12 Bock 1 Gmbh & Co. Kg Armlehne, insbesondere für einen Bürostuhl

Citations (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5590934A (en) * 1996-03-07 1997-01-07 Shin Yeh Enterprise Co., Ltd. Adjustable chair-armrest assembly
US5641203A (en) * 1995-06-07 1997-06-24 Herman Miller Inc. Adjustable arm rest assembly
EP0809957A2 (de) 1996-05-30 1997-12-03 GRAHL GmbH Stuhl, insbesondere Drehstuhl, mit Armlehnen
US5749628A (en) * 1996-06-11 1998-05-12 Fixtures Manufacturing Corporation Vertically adjustable chair arm with rotatable armrest
US5752683A (en) 1995-11-14 1998-05-19 Global Upholstery Company Arm support device
US5927811A (en) * 1998-02-27 1999-07-27 Shin Yen Enterprise Co., Ltd. Adjustable chair-armrest assembly
US5931536A (en) * 1997-10-16 1999-08-03 Wu; Yao-Chuan Adjustable armrest of a chair
US6053578A (en) * 1997-06-04 2000-04-25 Knoll, Inc. Multi-adjustable armrest assembly
US6059366A (en) * 1999-05-06 2000-05-09 Hu; Jung-Hua Adjustable armrest for chairs
US6076891A (en) 1997-11-17 2000-06-20 Bernhardt; Sean E. Dual-pivot multi-position ratcheting chair arm
US6106070A (en) * 1995-06-07 2000-08-22 Haworth, Inc. Height-adjustable chair arm assembly
US6502904B1 (en) * 1999-04-12 2003-01-07 Sdm Hansen Ag Arm support for a chair
US20030030317A1 (en) * 2001-08-08 2003-02-13 Chen Chao Ken Armrest of chair with cushion
US6619746B2 (en) * 2000-06-09 2003-09-16 Haworth, Inc. Height-adjustable rotatable chair arm

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2481218Y (zh) * 2001-05-09 2002-03-13 李清阳 办公椅扶手简易调整结构
DE50205453D1 (de) * 2002-10-04 2006-02-02 Stoll Sedus Ag Armlehne

Patent Citations (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5641203A (en) * 1995-06-07 1997-06-24 Herman Miller Inc. Adjustable arm rest assembly
US6106070A (en) * 1995-06-07 2000-08-22 Haworth, Inc. Height-adjustable chair arm assembly
US5752683A (en) 1995-11-14 1998-05-19 Global Upholstery Company Arm support device
US5590934A (en) * 1996-03-07 1997-01-07 Shin Yeh Enterprise Co., Ltd. Adjustable chair-armrest assembly
EP0809957A2 (de) 1996-05-30 1997-12-03 GRAHL GmbH Stuhl, insbesondere Drehstuhl, mit Armlehnen
US5749628A (en) * 1996-06-11 1998-05-12 Fixtures Manufacturing Corporation Vertically adjustable chair arm with rotatable armrest
US6076892A (en) 1997-06-04 2000-06-20 Knoll, Inc. Multi-adjustable armrest assembly
US6053578A (en) * 1997-06-04 2000-04-25 Knoll, Inc. Multi-adjustable armrest assembly
US5931536A (en) * 1997-10-16 1999-08-03 Wu; Yao-Chuan Adjustable armrest of a chair
US6076891A (en) 1997-11-17 2000-06-20 Bernhardt; Sean E. Dual-pivot multi-position ratcheting chair arm
US5927811A (en) * 1998-02-27 1999-07-27 Shin Yen Enterprise Co., Ltd. Adjustable chair-armrest assembly
US6502904B1 (en) * 1999-04-12 2003-01-07 Sdm Hansen Ag Arm support for a chair
US6059366A (en) * 1999-05-06 2000-05-09 Hu; Jung-Hua Adjustable armrest for chairs
US6619746B2 (en) * 2000-06-09 2003-09-16 Haworth, Inc. Height-adjustable rotatable chair arm
US20030030317A1 (en) * 2001-08-08 2003-02-13 Chen Chao Ken Armrest of chair with cushion

Cited By (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070164594A1 (en) * 2004-10-26 2007-07-19 Ching-Chung Yang Multi-functional armrest assembly
US20090189428A1 (en) * 2005-03-01 2009-07-30 Haworth, Inc. Arm assembly for a chair
US7815259B2 (en) * 2005-03-01 2010-10-19 Haworth, Inc. Arm assembly for a chair
US8235468B2 (en) 2005-03-01 2012-08-07 Haworth, Inc. Arm assembly for a chair
US20060226691A1 (en) * 2005-04-08 2006-10-12 Steelcase Development Corporation Armrest with height adjustment mechanism
US20060238011A1 (en) * 2005-04-08 2006-10-26 Steelcase Development Corporation Adjustable armrest with motion control
US7234779B2 (en) 2005-04-08 2007-06-26 Steelcase Development Corporation Armrest with height adjustment mechanism
US7341313B2 (en) 2005-04-08 2008-03-11 Steelcase Development Corporation Adjustable armrest with motion control
US7452032B1 (en) 2005-09-27 2008-11-18 Earthlite Massage Tables, Inc. Armrest assembly for a resting device
US9113711B2 (en) 2011-01-10 2015-08-25 Bock 1 Gmbh & Co. Kg Armrest, in particular for an office chair
US20140354026A1 (en) * 2012-02-01 2014-12-04 Imarc S.P.A. Armrest, in particular for office chairs
US9345333B2 (en) * 2012-02-01 2016-05-24 Imarc S.P.A. Armrest, in particular for office chairs
US9044098B2 (en) 2012-11-16 2015-06-02 Holland Plastics Corporation Adjustable armrest assembly
US20140159444A1 (en) * 2012-12-12 2014-06-12 Airbus Operations (Sas) Seating device comprising a forward-foldable backrest
US9399517B2 (en) * 2012-12-12 2016-07-26 Airbus Operations Sas Seating device comprising a forward-foldable backrest
US9320360B2 (en) 2012-12-14 2016-04-26 Holland Plastics Corporation Armrest assembly
US20180325261A1 (en) * 2017-05-15 2018-11-15 Bock 1 Gmbh & Co. Kg Armrest, in particular for an office chair
US10537176B2 (en) * 2017-05-15 2020-01-21 Bock 1 Gmbh & Co. Kg Armrest, in particular for an office chair
USD888479S1 (en) * 2018-06-04 2020-06-30 Steelcase Inc. Chair arm
US11369204B2 (en) 2020-01-21 2022-06-28 Bock 1 Gmbh & Co. Kg Armrest, in particular for an office chair
US11266247B2 (en) * 2020-02-24 2022-03-08 Atec International Team Co., Ltd. Easily assembled chair armrest
US11324326B2 (en) * 2020-03-03 2022-05-10 Yi-Ru Chen Multi-directional adjustable armrest pad and chair armrest device with armrest pad
US20220080602A1 (en) * 2020-09-11 2022-03-17 Verb Surgical Inc. Linear lock and adjustable arm support system
US11787063B2 (en) * 2020-09-11 2023-10-17 Verb Surgical Inc. Linear lock and adjustable arm support system
US20220322834A1 (en) * 2021-03-30 2022-10-13 Atec International Team Co., Ltd. Chair armrest
US11849861B2 (en) * 2021-03-30 2023-12-26 Atec International Team Co., Ltd. Chair armrest

Also Published As

Publication number Publication date
ES2252372T3 (es) 2006-05-16
DE50205453D1 (de) 2006-02-02
EP1405582B1 (de) 2005-12-28
US20040066080A1 (en) 2004-04-08
HK1064267A1 (en) 2005-01-28
MXPA03009017A (es) 2004-09-10
EP1405582A1 (de) 2004-04-07
CN100435694C (zh) 2008-11-26
CN1496696A (zh) 2004-05-19
CA2440490A1 (en) 2004-04-04
CN2698172Y (zh) 2005-05-11
ATE313986T1 (de) 2006-01-15

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Owner name: SEDUS STOLL AG, GERMANY

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Effective date: 20030924

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Effective date: 20130927